EP3034320A1 - Procede de fabrication de stratifies decoratifs parfumes et de panneaux decoratifs parfumes - Google Patents

Procede de fabrication de stratifies decoratifs parfumes et de panneaux decoratifs parfumes Download PDF

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Publication number
EP3034320A1
EP3034320A1 EP15190331.7A EP15190331A EP3034320A1 EP 3034320 A1 EP3034320 A1 EP 3034320A1 EP 15190331 A EP15190331 A EP 15190331A EP 3034320 A1 EP3034320 A1 EP 3034320A1
Authority
EP
European Patent Office
Prior art keywords
sheet
paper
comprised
scented
decorative
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15190331.7A
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German (de)
English (en)
Other versions
EP3034320B1 (fr
Inventor
Stefano Monti
Alessandro Carrara
Roberto CASPANI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cleaf SpA
Original Assignee
Cleaf SpA
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Publication date
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Publication of EP3034320A1 publication Critical patent/EP3034320A1/fr
Application granted granted Critical
Publication of EP3034320B1 publication Critical patent/EP3034320B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C5/00—Processes for producing special ornamental bodies
    • B44C5/04—Ornamental plaques, e.g. decorative panels, decorative veneers
    • B44C5/0469—Ornamental plaques, e.g. decorative panels, decorative veneers comprising a decorative sheet and a core formed by one or more resin impregnated sheets of paper
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/102—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of fibrous or chipped materials, e.g. bonded with synthetic resins
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels

Definitions

  • the present invention refers to a method for producing decorative laminates and faced panels which are scented, i.e. capable of emanating a desired scent for a sufficiently prolonged time.
  • Decorative laminate generally means a coating material (rigid or flexible) composed of several layers of paper, impregnated with thermosetting resins, typically phenol or melamine resins, bonding the layers together.
  • the cross-linking of the resins is typically achieved by applying pressure and heat to the impregnated sheets of paper.
  • the decorative laminate typically comprises a layer of printed or single-tone decorative paper impregnated with melamine resins and a structuring layer, which can be composed of one or more sheets of Kraft paper impregnated with phenolic resin, or by one or more sheets of paper impregnated with melamine resins or urea-acrylic resins, or a sheet of cellulose sulphur paper, not impregnated with resin, called 'parchment' paper.
  • an additional layer known in the jargon as 'overlay' which is a high-transparency paper impregnated with melamine resins, may be added.
  • the decorative laminate is used for coating surfaces on which it is glued.
  • Fiber panel means a panel made of chipboard, plywood, OSB, MDF, HDF or the like, or of wood derivatives or substitutes, coated on at least one side with at least a sheet of paper impregnated with thermosetting resin.
  • the perfuming of said resin-impregnated surfaces of the decorative laminates and of the faced panels can be achieved by adding appropriate essences in the liquid phase of impregnation resins.
  • the decorative sheets of paper are impregnated with a hardening resin containing an added essence, put into drying ovens and are then ready for subsequent use in a facing press.
  • the Applicant has realized that the above techniques have the following important disadvantages.
  • the paper impregnated with resin and scented essence has a limited duration because of the duration of the catalysed melamine resin, estimated at about six months, after which the impregnated material is no longer usable.
  • the present invention refers to a method for producing scented decorative laminates and faced panels, the method comprising:
  • 'Sheet of transparent paper' means a thin (for example, at most a few tenths of a mm thick) film of material suitable for impregnation or coating with scented essences and transparent, or that becomes transparent when it undergoes the cross-linking process of the present invention (so as to see through it the decorative effect of the decorative sheet below), typically a sheet of cellulose paper with no ash content (known in the jargon as 'rough overlay'), but also alternatively suitable materials such as electro-spuns, etc.
  • 'Sheet of decorative paper' means a sheet of material (usually paper) suitable for impregnation with thermosetting resins, either single-tone or bearing a decorative print.
  • the decorative paper is interposed between the substrate and the sheet of transparent paper.
  • the use of a sheet of transparent paper not impregnated with resin, but only with essence, together with the usual sheet of decorative paper impregnated with resin greatly increases the flexibility of the production technique in terms of essence-decorative pattern combinations, reducing warehouse stocks and waste due to product expiration.
  • the sheet of paper with the desired essence can be easily produced in small batches, has virtually no expiry and can be combined at a later stage will with any decorative paper.
  • the present invention may have one or more of the following preferred embodiments.
  • the substrate can be a panel made of chipboard, plywood, OSB, MDF, HDF or the like or wood derivatives or substitutes, in the case of production of a faced panel, or one or more sheets of Kraft paper impregnated with phenolic resin or one or more sheets of paper impregnated with melamine resins or urea-acrylic resins, or a sheet of parchment paper (as defined above), in the case of production of a decorative laminate.
  • the sheet of transparent paper is a high-transparency paper film, such as a rough paper film with no ash content, preferably an alpha-cellulose film.
  • the sheet of transparent paper has a weight comprised between 15 and 40 g/m 2 , more preferably between 20 and 30 g/m 2 .
  • impregnation of the sheet of transparent paper comprises impregnating or coating the sheet of transparent paper with a solution (e.g. water or alcohol-based) of said scented essence and drying said solution.
  • a solution e.g. water or alcohol-based
  • the sheet of transparent paper is wrapped in a film of plastic material adapted to preserve the essence.
  • the sheet of transparent paper has a very long duration.
  • a step of storing the sheet of transparent paper is provided.
  • the amount of essence on the sheet of transparent paper is greater than or equal to 5 g/m 2 , more preferably greater than or equal to 10 g/m 2 , and/or less than or equal to 30 g/m 2 , more preferably less than or equal to 25 g/m 2 of dry essence.
  • the formulation of the dry essence is persistent so as to limit the evaporation of the essence during and immediately after the pressing step.
  • the step of providing pressure and heat to the so obtained layering is achieved through a single or multi-compartment facing press, for instance a static press, or through a continuous press (for details see, for example, EP 2189298 A1 ).
  • pressure is greater than or equal to 30 Kg/cm 2 , more preferably greater than 50 Kg/cm 2 , since high pressures allow to maintain a high transparency of the sheet of transparent paper thanks to a perfect saturation with the thermosetting resin of the decorative paper below.
  • one or more phenolic barriers may be interposed between the substrate and said sheet of decorative paper.
  • a static press with a hot-hot cycle is used, wherein the temperature is comprised between 160 °C and 200 °C, and/or the duration of the cycle is comprised between 15 s and 60 s, and/or the pressure is comprised between 20 kg/cm 2 and 80 kg/cm 2 .
  • a static press typically multi-compartment with a hot-hot cycle
  • the temperature is comprised between 70°C and 150°C
  • the duration of the cycle is comprised between 30 min and 70 min
  • the pressure is comprised between 70 kg/cm 2 and 100 kg/cm 2 .
  • a continuous press with a hot-hot cycle is used, wherein the temperature is comprised between 160 °C and 200 °C, and/or the speed is comprised between 2 s and 20 m/min, and/or the pressure is comprised between 40 kg/cm 2 and 100 kg/cm 2 .
  • Sheet of transparent paper weighing 25 g/m 2 impregnated with about 10 g/m 2 of dry essence and without resin, overlaid on a sheet of decorative paper impregnated with standard melamine resin for a hot-hot cycle, with or without a phenol or melamine substrate (as known in the art), the whole pressed on a particle or MDF board.
  • Hot-hot pressing cycle i.e. with press plates at a constant temperature
  • a single-compartment static press temperature between 160 and 200°C
  • cycle duration between 15 s and 60 s
  • pressure comprised between 20 and 80 kg/cm 2 .
  • Sheet of transparent paper weighing 25 g/m 2 impregnated with about 10 g/m 2 of dry essence and without resin, overlaid on a sheet of decorative paper impregnated with standard melamine resin for a hot-cold cycle, the whole overlaid on several layers of Kraft paper impregnated with phenol resin (overall thickness between 0,5 mm and 20 mm).
  • Hot-cold pressing cycle in a multi-compartment static press for highpressure laminates having a 70°C-150°C-70°C temperature profile, cycle duration between 30 and 70 min and pressure between 70 and 100 kg/cm 2 .
  • Sheet of transparent paper weighing 25 g/m 2 impregnated with about 10 g/m 2 of dry essence without resin, overlaid on a sheet of decorative paper impregnated with standard melamine resin for a hot-hot cycle, the whole overlaid on a sheet of parchment paper in order to produce a CPL (thickness between 0,15 and 0,40 mm, spoolable) or on several layers of Kraft paper impregnated with phenol resin in order to produce CHPL (overall thickness between 0,5 and 20 mm).
  • CPL thickness between 0,15 and 0,40 mm, spoolable
  • CHPL overall thickness between 0,5 and 20 mm

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
EP15190331.7A 2014-12-19 2015-10-19 Procede de fabrication de stratifies decoratifs parfumes et de panneaux decoratifs parfumes Active EP3034320B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20142190 2014-12-19

Publications (2)

Publication Number Publication Date
EP3034320A1 true EP3034320A1 (fr) 2016-06-22
EP3034320B1 EP3034320B1 (fr) 2017-08-09

Family

ID=52633379

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15190331.7A Active EP3034320B1 (fr) 2014-12-19 2015-10-19 Procede de fabrication de stratifies decoratifs parfumes et de panneaux decoratifs parfumes

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EP (1) EP3034320B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113246236A (zh) * 2021-04-01 2021-08-13 山东东宇鸿翔柜橱材料有限公司 一种大刨花osb板平贴装饰纸及其制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2022562A1 (de) * 1969-05-08 1970-11-19 Isorel Puteaux Kontinuierliches Verfahren zur Herstellung dekorativer Platten und Vorrichtung zur Durchfuehrung des Verfahrens
EP0268250A2 (fr) * 1986-11-18 1988-05-25 Formica Corporation Laminé décoratif, marbré et translucide présentant un effet de profondeur et son procédé de fabrication
FR2788722A1 (fr) * 1999-01-25 2000-07-28 Etienne Francois Saint Revetement mural ou de sol reutilisable
EP1203657A1 (fr) * 2000-03-24 2002-05-08 Ibiden Co., Ltd. Materiau et plaque decoratifs
DE20211443U1 (de) * 2002-07-12 2003-11-13 Hw Ind Gmbh & Co Kg Synthetisch hergestellter Fussbodenbelag
EP2189298A1 (fr) 2008-11-25 2010-05-26 Cleaf S.p.A. Procédé de production de panneaux décoratifs ou stratifiés avec des tissus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2022562A1 (de) * 1969-05-08 1970-11-19 Isorel Puteaux Kontinuierliches Verfahren zur Herstellung dekorativer Platten und Vorrichtung zur Durchfuehrung des Verfahrens
EP0268250A2 (fr) * 1986-11-18 1988-05-25 Formica Corporation Laminé décoratif, marbré et translucide présentant un effet de profondeur et son procédé de fabrication
FR2788722A1 (fr) * 1999-01-25 2000-07-28 Etienne Francois Saint Revetement mural ou de sol reutilisable
EP1203657A1 (fr) * 2000-03-24 2002-05-08 Ibiden Co., Ltd. Materiau et plaque decoratifs
DE20211443U1 (de) * 2002-07-12 2003-11-13 Hw Ind Gmbh & Co Kg Synthetisch hergestellter Fussbodenbelag
EP2189298A1 (fr) 2008-11-25 2010-05-26 Cleaf S.p.A. Procédé de production de panneaux décoratifs ou stratifiés avec des tissus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113246236A (zh) * 2021-04-01 2021-08-13 山东东宇鸿翔柜橱材料有限公司 一种大刨花osb板平贴装饰纸及其制备方法

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